The reindeer is the only mammal that can see UV light.
17
Ants have tiny magnetic compasses in their antennae which help them navigate.
9
Baks the blind boxer has a seeing eye goose named Buttons; a four-year-old goose who leads the pup around everywhere either by hanging onto him with her neck, or by honking to tell him which way to go.
16
Penguins have a gland above their eye that turns saltwater into freshwater.
12
There’s a bonobo named Kanzi who has learned to build a campfire and cook his own food.
8
The octopus does not have a blind spot.
273
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23